In this book the author has attempted to make a systematic analysis of the factors and
principles involved in a constructive theory of secondary education. The theory
herein developed is the outgrowth of the writer's experience in
secondary-school teaching and administration, together with his experience as a college instructor in the theory and practice of secondary education. The
present volume presents the content and method employed in a course of the Principles of Secondary Education at Harvard University. After use in
manuscript form for several years, the book is now published in the hope that it may prove of some value to teachers, administrators, and other students of education.